Nice view from the backside left on a Moto-Guzzi Le Mans 1000 – the better half:
So so, how about asking the pilots not the researchers ??
Nevertheless interesting report:
Drawing / study of the beautiful Ducati Desmo “Königswellen” engine. The engine was initially only roughly sketched in outline, although essential details such as the “Königswellen” should be recognizable.
Based on this, the painting was created for the same object, which can be found here.